Table 1.
Summary of known cases of HTT Cases listed by class and tallied by superfamily with the number of cases observed in drosophilids and involving cross-phyla transfer noted (see Supplemental Table for complete list and references).
| Class | Superfamily | Number of HTTs | Number of HTTs in Drosophila | Number of cross-phyla HTTs |
|---|---|---|---|---|
| Non-LTR retrotransposons | jockey | 3 | 3 | - |
| RTE | 6 | - | - | |
| CR1 | 1 | - | - | |
| Rex1 | 1 | - | - | |
| Tad | 2 | - | - | |
| Smal (SINE) | 1 | - | - | |
| LTR retrotransposons | Ty3/gypsy | 70 | 63 | - |
| Ty1/copia | 16 | 4 | - | |
| Penelope | Penelope | 11 | 11 | - |
| DNA transposons | P | 28 | 28 | - |
| Tc1/mariner | 34 | 17 | 3 | |
| PIF | 3 | 3 | - | |
| Mutator | 1 | - | - | |
| hAT | 38 | 10 | 9 | |
| IS5 | 1 | - | - | |
| PiggyBac | 2 | - | - | |
| TOTAL | 218 | 139 | 12 |